Sorry Kim,
If you must do such complicated models, you'' have to do the
combinations the tedious way. I have not automated the kind of
thing you are attempting because there are so many alternative possabilities.
Arthur
> X-Authentication-Warning: lamb.chiswick.anprod.csiro.au: petidomo set sender
to asreml-owner@lamb.chiswick.anprod.csiro.au using -f
> Date: Fri, 21 Jul 2000 14:38:43 +1000
> To: asreml@chiswick.anprod.csiro.au
> From: Kim Bunter <kbunter@metz.une.edu.au>
> Subject: traits with different models
> Mime-Version: 1.0
>
> Hi Arthur,
>
> I have been using the parallel method in the pin file for calculating
> correlations etc from multi-trait analyses, and this works great for series
> of traits which have the same random effects models. However, it is far
> from simple where there are several traits which have different models for
> random effects. Is there a shortcut method in this case for the pin file???
> Or, should you set up the analysis to give you the same models for each
> trait, but fixing some to very low values for specific cases (I imagine
> this might cause problems with convergence etc?).
>
> For example: traits 1 2 3 4 and 5 fitting additive for all, but c2 only for
> traits 1 and 2. With identical random effects models the phenotypic
> variance would be simply 1:15 + 16:30. Now that we have c2 for two traits
> only I find I have to build more than one phenotypic covariance matrix, and
> remember which one is correct for which traits.....Is there something I
> have missed in the manual which allows you to add up the matrices correctly?
>
> Hope you can help with simplifying this....
>
> Cheers
>
> Kim
> Kim Bunter (M.Rur.Sc)
> PhD Student
> Animal Genetics and Breeding Unit
> University of New England
> Armidale, NSW, 2351
> AUSTRALIA
>
> Ph (ISD): -61-2-67733788
> Fax (ISD): -61-2-67733266
> email: kbunter@metz.une.edu.au
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Arthur Gilmour PhD mailto:Arthur.Gilmour@agric.nsw.gov.au
Principal Research Scientist (Biometrics) fax: <61> 2 6391 3899
NSW Agriculture <61> 2 6391 3922
Orange Agricultural Institute telephone work: <61> 2 6391 3815
Forest Rd, ORANGE, 2800, AUSTRALIA home: <61> 2 6362 0046
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